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Control.com topic...
Power Generation
Topic: Power generation equipment control.
from the Gas Turbines department...
What Is CEMS Used For?
Posted by Daneezy on 20 September, 2014 - 3:53 pm
What is CEMS used for and how does it operate in Power Generation gas turbines (GE Frame 9e)?
Topic: Power generation equipment control.
from the Forum department...
Mark V Diagnostic Alarms
Originally posted by Ivan on 18 September, 2014 - 11:18 am
Mark V TMR control panel, MS5001P, Diagnostic Alarms
New Replies:
Ivan, We had a similar problem last year. We we're getting Voter Mismatch alarms for SVL (Bus...
Often when cards are zapped by stray voltages, the isolation circuits (caps) can hold charge that...
I once had a lightning strike in the switchyard and somehow voltage managed its way to the 125DC...
Ivan, When the generator breaker is closed it's typical for GE-designed synchronizing circuits...
CSA, Today I have investigated this issue more deeply by myself and found the next: - All...
CSA, These alarms occur more often when generator breaker closed already (approximately every...
Ivan, When do these alarms occur? During normal full speed operation with the generator breaker...
Topic: Power generation equipment control.
from the Forum department...
excitation control
Originally posted by Kamel on 30 September, 2012 - 3:37 am
excitation control
New Replies:
One more question: where is the limit point between Generator terminals and grid? The other...
Topic: Power generation equipment control.
from the Simulation department...
Automatic Volage Regulation
Originally posted by Dave on 6 August, 2013 - 1:25 pm
Question on the behavior of AVR after synchronization.
New Replies:
Engr.. Is it correct in saying that adjusting vars when operating in auto just changes generator...
Engr... Reur 29-May-14 post,"Can u explain please what happen in reality?" Are you...
> We have on load tap changer for transformer. When generator MVARS are high (lagging side) due...
Topic: Power generation equipment control.
from the Mechanical Engineering department...
Frame 9e Bearing Drawings
Posted by Mk6TA on 18 September, 2014 - 8:31 am
Bearing #1 drawings for a GE Frame 9e are missing.
Topic: Power generation equipment control.
from the Power Generation department...
When Will 88CR start?
Originally posted by Neo on 10 September, 2014 - 10:27 am
GT start up sequence, when will 88CR get started?
New Replies:
Neo, You didn't post L1X.... It's kind of critical to the whole discussion. And, it's also kind...
CSA I would like to begin with L1Z,and i think it is a little hard for me. I will do as much as...
Neo, Can you repeat question/response, please? I don't want to comment on L1X, L1Z until you...
CSA: I am preparing for the L1Z, L1X, l4hr rung. And i think you may miss one of my response. ...
Neo, You don't have to ask--no one does! I wouldn't comment until you posted L1x and L1Z from...
CSA: Can i ask questions about L1X, L1Z and l4hr. I am just wondering whether L1X goes to...
CSA: To be honest, every of your response helps! "Lastly, can you determine how l72qez...
Neo, You used to use the Thumbs Up/Thumbs Down indicator when you found the post useful or...
CSA: Thanks a lot. Again it helps a lot! And i find l72qez is different from others,as others...
Neo, There was another query in the original post, and we'll get to that in a moment. I would...
CSA Thank you so much for your reply. Your detailed response always helps! I think the way...
Topic: Human-Machine Interface and SCADA.
from the C&I department...
Mark V Signal Scaling in HMI
Originally posted by VM on 11 September, 2014 - 8:25 am
Exciter signals gain in mark V
New Replies:
VM, Can you please post the relevant lines (rows) from IO.ASG? What happened when you put the...
Can you please refer the exact scaling values?...
VM, Hmmm.... Well, even if these signals appear in the IO.ASG for a unit, it's not certain they...
Topic: Power generation equipment control.
from the Forum department...
Excitation system
Originally posted by bing on 10 May, 2009 - 12:50 pm
What is an excitation system is and what role it does play in the start up of a prime mover like a gas turbine
New Replies:
The Power Factor is a function of the MVar. If your unit or turbine is connected to the grid,...
Topic: Power generation equipment control.
from the Wish i paid more attention at University department...
Power Factor on LV/HV Sides of a Transformer
Originally posted by CB on 10 September, 2014 - 10:46 am
how to analyse the power factor of a system across a transformer
New Replies:
Yes i sincerely need a comprehensive calculation on this power factor issue. Thank U very much as i...
Originally posted by Bill Futch on 12 August, 2014 - 4:08 pm
Starting motor does not cutout when a normal shutdown is given below 60% speed.
New Replies:
Sorry I have been away for so long. I honestly don't think I have had more than 5 minutes in my...
Topic: Power generation equipment control.
from the Forum department...
Gas Turbine Rachet/Starting Problems
Posted by Alex on 17 September, 2014 - 3:07 am
After trip found SSS clutch calibrated bolts broken
Topic: Power generation equipment control.
from the operations department...
AVR Functioning and MVAR control
Originally posted by suryapadhu on 11 September, 2014 - 12:01 pm
AVR Functioning and MVAR control for Gas and Steam turbines
New Replies:
Suryapradhu, Transformer tap changers are available in different configurations, and without...
As usual expected Mr.CSA is the one who strikes the reply earlier. Thank you very much sir... ...
suryapadhu, Thank you for taking the time to search through the archived threads looking for an...
Topic: Power generation equipment control.
from the CPP department...
Generator Turbine Speed Control
Originally posted by Manoj Baviskar on 10 September, 2014 - 4:10 am
Effect of Reactive load throw off on Turbine (GTG) speed after Generator independent from Grid power.
New Replies:
Manoj, You seem to be providing conflicting information, and you also say, "...Practically,...
Your reply is an eye opener. We will have to seriously start thinking of Isochronous control for...
Manoj, 1) The fuel was not high at the time of isolation--it drifted higher. There are two...
Many Thanks CSA for the prompt reponse, Coming to your question: The turbine-generator (GTG)...
Topic: Power generation equipment control.
from the gas turbine controls department...
Removing Flow Divider Instrumentation on GE 7EA Turbine
Originally posted by Dan on 14 September, 2014 - 9:37 am
GE 7EA turbine, will removing flow divider instrumentation affect operation on Fuel Gas, Mark IV Startup Lockout?
New Replies:
Dan, It should not. You can easily just determinate the speed pickups from the AIO TB and the...
Topic: Power generation equipment control.
from the Maintenance department...
Fluid Variable Speed Drive Hunting
Originally posted by Mohammad Kashif on 13 September, 2014 - 5:03 am
Hunting problem in scoop of Voith Geared Variable Speed Coupling R 18 K 500 M
New Replies:
> if it is pneumatically actuated, you might check for water build up in the instrument air...
if it is pneumatically actuated, you might check for water build up in the instrument air line....
Topic: Power generation equipment control.
from the Generator Stator bar department...
Generator Maintenance
Posted by Fazle Hassan on 13 September, 2014 - 11:36 am
The generator tripped due to earth fault. We found some particles which defected the stator bar shorted to core. Now the surface of core is also damaged.
Topic: Power generation equipment control.
from the Process department...
Power Plant Performance
Posted by Tracy on 13 September, 2014 - 8:01 am
What are the important process parameters for power plant performance?
Topic: Power generation equipment control.
from the maintenance department...
Different Parameters on Siemens 7SJ6005 Relays
Posted by paru on 12 September, 2014 - 12:34 pm
Why are some of the parameters in new Siemens 7SJ6005 relay missing or different from relay model with the same part number?
Posted by farid on 11 September, 2014 - 10:13 pm
Vendor converts input signal before 1900/65A and convert back to same signal at the output
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